A lyric soprano who sings frequently with the New York City Opera is suing the Hilton Hotel chain for $6 million – saying she went from Madame Butterfly to Madame Bedbug in an infested Arizona hotel room.

Alison Trainer, of Manhattan, suffered more than 150 bedbug bites during her itchy stay at the Hilton Suites in Phoenix this past November, according to the lawsuit. At least a dozen of the bites are on her face, said her lawyer, Kenneth Glassman.

Trainer is so traumatized, she can no longer bear sleeping in a bed – and sleeps on the floor instead, her suit claims. She’s continued to perform, but otherwise can’t bear to be seen, the lawyer said.

“She looks like a piece of wood that was attacked by termites,” Glassman said.

Trainer, who traveled with her pet dog, was in Phoenix to perform with the Phoenix Symphony. Several days into her stay at the Hilton Suites, she noticed some dried bloodstains on her sheets, and asked housekeeping to change them, which they did, according to the suit.

Then, on the last night of her stay, Nov. 26, Trainer “awoke at 3:30 a.m. to find her bed infested with what she later learned to be bedbugs,” the suit said. Hotel staff did nothing in response except to offer her that final night free of charge, the suit said.

What followed were sleepless nights, the expensive replacement of her belongings, and the itchiness and humiliation of having bites across her face, limbs and torso, the suit said. She even dipped her dog and sent an exterminator to her own apartment to do some pre-emptive spraying before she returned, the suit said.

“The trauma from the bedbugs incident at the Defendant Hilton Suites hotel continued to persist,” the suit said.

“Besides not being able to bear sleeping in a bed (and opting for the floor instead) and getting either very little or drug-induced sleep, Plaintiff had no appetite and lost weight,” the suit said.